不使用SMTP意图发送邮件机器人 [英] Sending mail in android without intents using SMTP

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本文介绍了不使用SMTP意图发送邮件机器人的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

您好我正在开发一个Android应用程序，它会发送邮件上点击一个按钮。 code工作在第一，但由于某些原因，它不工作了。任何人都可以请帮我这个？ xyz@outlook.com是收件人。 abc@gmail.com是发送者。 我已经很难codeD的主题和邮件正文。

 包com.example.clc_construction;
进口的java.io.File;
进口java.io.UnsupportedEncodingException;
进口java.util.Properties;
进口的javax.activati​​on.DataHandler;
进口javax.activati​​on.DataSource;
进口javax.activati​​on.FileDataSource;
进口javax.mail.Message;
进口javax.mail.MessagingException的;
进口javax.mail.Multipart;
进口javax.mail.PasswordAut​​hentication;
进口javax.mail.Session的;
进口javax.mail.Transport;
进口javax.mail.internet.AddressException;
进口javax.mail.internet.InternetAddress;
进口javax.mail.internet.MimeBodyPart;
进口的javax.mail.internet.MimeMessage;
进口javax.mail.internet.MimeMultipart;
进口android.app.Activity;
进口android.app.ProgressDialog;
进口android.content.Intent;
进口android.graphics.Bitmap;
进口android.os.AsyncTask;
进口android.os.Bundle;
进口android.os.Environment;


公共类电子邮件扩展活动
{
公共字符串jobNo;
公共字符串teamNo;
私有静态最后字符串username =abc@gmail.com;
私有静态最后字符串密码=000000;
私有静态最后弦乐EMAILID =xyz@outlook.com;
私有静态最后弦乐主题=照片;
私有静态最后字符串消息=你好;
私人多部分多部分=新MimeMultipart的（）;
私人MimeBodyPart messageBodyPart =新MimeBodyPart（）;
公共文件媒体文件;

@覆盖
保护无效的onCreate（包savedInstanceState）
{
    super.onCreate（savedInstanceState）;
    的setContentView（R.layout.camera_screen）;
    意向意图= getIntent（）;
    jobNo = intent.getStringExtra（Job_No）;
    teamNo = intent.getStringExtra（Team_No）;
    Sendmail的（EMAILID，主题，邮件）;

}
私人无效的sendmail（字符串email，字符串主题，字符串消息体）
 {
        会话会话= createSessionObject（）;

        尝试 {
            消息消息= createMessage（电子邮件，主题，消息体，会话）;
            新SendMailTask​​（）执行（消息）;
        }
        赶上（是AddressException E）
        {
            e.printStackTrace（）;
        }
        赶上（MessagingException E）
        {
            e.printStackTrace（）;
        }
        赶上（UnsupportedEncodingException E）
        {
            e.printStackTrace（）;
        }
    }


私人会议createSessionObject（）
{
    属性属性=新的属性（）;
    properties.put（mail.smtp.auth，真）;
    properties.put（mail.smtp.starttls.enable，真）;
    properties.put（mail.smtp.host，smtp.gmail.com）;
    properties.put（mail.smtp.port，587）;

    返回Session.getInstance（属性，新javax.mail.Authenticator（）
    {
        受保护的PasswordAut​​hentication的getPasswordAut​​hentication（）
        {
            返回新的PasswordAut​​hentication（用户名，密码）;
        }
    }）;
}

悄悄话createMessage（字符串email，字符串主题，字符串消息体，届届）抛出

MessagingException，UnsupportedEncodingException
{
    消息消息=新的MimeMessage（会议）;
    message.setFrom（新网际（xzy@outlook.com，函数naveed库雷希））;
    message.addRecipient（Message.RecipientType.TO，新的网际（电子邮件，电子邮件））;
    message.setSubject（学科）;
    message.setText（消息体）;
    返回消息;
}



公共类SendMailTask​​扩展的AsyncTask＆LT;消息，虚空，虚空＆GT;
{
    私人ProgressDialog progressDialog;

    @覆盖
    在preExecute保护无效（）
    {
        super.on preExecute（）;
        progressDialog = ProgressDialog.show（Email.this，请稍等，发送邮件，真，假）;
    }

    @覆盖
    保护无效onPostExecute（虚空避免）
    {
        super.onPostExecute（避免）;
        progressDialog.dismiss（）;
    }

    保护无效doInBackground（javax.mail.Message ...消息）
    {
        尝试
        {
            Transport.send（消息[0]）;
        }赶上（MessagingException E）
        {
            e.printStackTrace（）;
        }
        返回null;
    }
}
}

解决方案

把你的清单文件，

 ＆LT;使用-权限的Andr​​oid：名称=android.permission.ACCESS_NETWORK_STATE/＆GT;

检查，如果您有互联网连接，

 公共布尔isOnline（）{
    ConnectivityManager厘米=
        （ConnectivityManager）getSystemService（Context.CONNECTIVITY_SERVICE）;
    的NetworkInfo的NetInfo = cm.getActiveNetworkInfo（）;
    如果（NetInfo的= NULL和放大器;！＆安培; netInfo.isConnectedOrConnecting（））{
        返回true;
    }
    返回false;
}

和finnaly使用code发送电子邮件

 最后字符串username =username@gmail.com;
最终的字符串密码=密码;

属性道具=新特性（）;
props.put（mail.smtp.auth，真）;
props.put（mail.smtp.starttls.enable，真）;
props.put（mail.smtp.host，smtp.gmail.com）;
props.put（mail.smtp.port，587）;

会话会话= Session.getInstance（道具，
  新javax.mail.Authenticator（）{
    受保护的PasswordAut​​hentication的getPasswordAut​​hentication（）{
        返回新的PasswordAut​​hentication（用户名，密码）;
    }
  }）;
    尝试 {
        消息消息=新的MimeMessage（会议）;
        message.setFrom（新网际（from-email@gmail.com））;
        message.setRecipients（Message.RecipientType.TO，
            InternetAddress.parse（to-email@gmail.com））;
        message.setSubject（测试主题）;
        message.setText（亲爱的邮件履带
            +\ñ\ N无垃圾邮件到我的邮箱，请！）;

        MimeBodyPart messageBodyPart =新MimeBodyPart（）;

        多部分多部分=新MimeMultipart的（）;

        messageBodyPart =新MimeBodyPart（）;
        字符串文件=文件的路径要附加;
        字符串文件名=attachmentName
        数据源源=新FileDataSource（文件）;
        messageBodyPart.setDataHandler（新的DataHandler（源））;
        messageBodyPart.setFileName（文件名）;
        multipart.addBodyPart（messageBodyPart）;

        message.setContent（多部分）;

        Transport.send（消息）;

        的System.out.println（完成）;

    }赶上（MessagingException E）{
        抛出新的RuntimeException（E）;
    }

Hi I am developing an android app which will send mail on click of a button. Code worked at first but due to some reason its not working now. Could anyone please help me with this? xyz@outlook.com is the recipient. abc@gmail.com is the sender. I have hard coded the subject and the body of the mail.

package com.example.clc_construction;
import java.io.File;
import java.io.UnsupportedEncodingException;
import java.util.Properties;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Multipart;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import android.app.Activity;
import android.app.ProgressDialog;  
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;


public class Email extends Activity
{
public String jobNo;
public String teamNo;
private static final String username = "abc@gmail.com";
private static final String password = "000000";
private static final String emailid = "xyz@outlook.com";
private static final String subject = "Photo";
private static final String message = "Hello";
private Multipart multipart = new MimeMultipart();
private MimeBodyPart messageBodyPart = new MimeBodyPart();
public File mediaFile;

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);
    setContentView(R.layout.camera_screen);
    Intent intent = getIntent();
    jobNo = intent.getStringExtra("Job_No");
    teamNo = intent.getStringExtra("Team_No"); 
    sendMail(emailid,subject,message);

}
private void sendMail(String email, String subject, String messageBody)
 {
        Session session = createSessionObject();

        try {
            Message message = createMessage(email, subject, messageBody, session);
            new SendMailTask().execute(message);
        }
        catch (AddressException e)
        {
            e.printStackTrace();
        }
        catch (MessagingException e)
        {
            e.printStackTrace();
        }
        catch (UnsupportedEncodingException e)
        {
            e.printStackTrace();
        }
    }


private Session createSessionObject()
{
    Properties properties = new Properties();
    properties.put("mail.smtp.auth", "true");
    properties.put("mail.smtp.starttls.enable", "true");
    properties.put("mail.smtp.host", "smtp.gmail.com");
    properties.put("mail.smtp.port", "587");

    return Session.getInstance(properties, new javax.mail.Authenticator()
    {
        protected PasswordAuthentication getPasswordAuthentication()
        {
            return new PasswordAuthentication(username, password);
        }
    });
}

private Message createMessage(String email, String subject, String messageBody, Session session) throws 

MessagingException, UnsupportedEncodingException
{
    Message message = new MimeMessage(session);
    message.setFrom(new InternetAddress("xzy@outlook.com", "Naveed Qureshi"));
    message.addRecipient(Message.RecipientType.TO, new InternetAddress(email, email));
    message.setSubject(subject);
    message.setText(messageBody);
    return message;
}



public class SendMailTask extends AsyncTask<Message, Void, Void>
{
    private ProgressDialog progressDialog;

    @Override
    protected void onPreExecute()
    {
        super.onPreExecute();
        progressDialog = ProgressDialog.show(Email.this, "Please wait", "Sending mail", true, false);
    }

    @Override
    protected void onPostExecute(Void aVoid)
    {
        super.onPostExecute(aVoid);
        progressDialog.dismiss();
    }

    protected Void doInBackground(javax.mail.Message... messages)
    {
        try
        {
            Transport.send(messages[0]);
        } catch (MessagingException e)
        {
            e.printStackTrace();
        }
        return null;
    }
}
}

解决方案

Put in your manifest file,

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

check if you have internet connection,

public boolean isOnline() {
    ConnectivityManager cm =
        (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    }
    return false;
}

and finnaly use this code to send email

final String username = "username@gmail.com";
final String password = "password";

Properties props = new Properties();
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable", "true");
props.put("mail.smtp.host", "smtp.gmail.com");
props.put("mail.smtp.port", "587");

Session session = Session.getInstance(props,
  new javax.mail.Authenticator() {
    protected PasswordAuthentication getPasswordAuthentication() {
        return new PasswordAuthentication(username, password);
    }
  });
    try {
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress("from-email@gmail.com"));
        message.setRecipients(Message.RecipientType.TO,
            InternetAddress.parse("to-email@gmail.com"));
        message.setSubject("Testing Subject");
        message.setText("Dear Mail Crawler,"
            + "\n\n No spam to my email, please!");

        MimeBodyPart messageBodyPart = new MimeBodyPart();

        Multipart multipart = new MimeMultipart();

        messageBodyPart = new MimeBodyPart();
        String file = "path of file to be attached";
        String fileName = "attachmentName"
        DataSource source = new FileDataSource(file);
        messageBodyPart.setDataHandler(new DataHandler(source));
        messageBodyPart.setFileName(fileName);
        multipart.addBodyPart(messageBodyPart);

        message.setContent(multipart);

        Transport.send(message);

        System.out.println("Done");

    } catch (MessagingException e) {
        throw new RuntimeException(e);
    }

这篇关于不使用SMTP意图发送邮件机器人的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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